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Related papers: On the M_V -- Inclination Relationship for Nova-li…

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We investigate variations of the mass transfer rate in cataclysmic variables (CVs) that are induced by nova outbursts. The ejection of nova shells leads to a spread of transfer rates in systems with similar orbital period. The effect is…

Astrophysics · Physics 2009-11-07 Ulrich Kolb , Saul Rappaport , Klaus Schenker , Steve Howell

The disk instability model attributes the outbursts of dwarf novae to a thermal-viscous instability of their accretion disk, an instability to which nova-like stars are not subject. We aim to test the fundamental prediction of the disk…

High Energy Astrophysical Phenomena · Physics 2018-09-19 Guillaume Dubus , Magdalena Otulakowska-Hypka , Jean-Pierre Lasota

The theoretical and observed populations of pre-cataclysmic variables (pre-CVs) are dominated by systems with low-mass white dwarfs (WDs), while the WD masses in CVs are typically high. In addition, the space density of CVs is found to be…

Solar and Stellar Astrophysics · Physics 2016-01-27 G. Nelemans , L. Siess , S. Repetto , S. Toonen , E. S. Phinney

We present a preliminary comparison of the post-nova population with that of general cataclysmic variables (CVs). We particularly focus on the mass-transfer rate and its potential relation to the nova eruption. We find that the known…

Solar and Stellar Astrophysics · Physics 2017-02-09 C. Tappert , I. Fuentes-Morales , E. Puebla , A. Ederoclite , L. Schmidtobreick , N. Vogt

The eruption of a (classical) nova is widely accepted to be a recurrent event in the lifetime of a cataclysmic binary star. In-between eruptions the system should therefore behave as a "normal" cataclysmic variable (CV), i.e. according to…

Solar and Stellar Astrophysics · Physics 2012-11-08 C. Tappert , L. Schmidtobreick , A. Ederoclite , N. Vogt

Cataclysmic variables are binary stars in which a relatively normal star is transferring mass to its compact companion. This interaction gives rise to a rich range of behaviour, of which the most noticeable are the outbursts that give the…

Astrophysics · Physics 2007-05-23 Robert Connon Smith

The stability criteria of rapid mass transfer and common-envelope evolution are fundamental in binary star evolution. They determine the mass, mass ratio, and orbital distribution of many important systems, such as X-ray binaries, type Ia…

Solar and Stellar Astrophysics · Physics 2024-11-27 Hongwei Ge , Zhanwen Han

The population of cataclysmic variables with orbital periods right above the period gap are dominated by systems with extremely high mass transfer rates, the so-called SW Sextantis stars. On the other hand, some old novae in this period…

Solar and Stellar Astrophysics · Physics 2014-08-25 Linda Schmidtobreick , Claus Tappert

Cataclysmic variable stars (CVs) are close binary systems consisting of a white dwarf (primary) that is accreting matter from a low-mass companion star (secondary). From time to time such systems undergo large-amplitude brightenings. The…

Compression of the stellar winds from rapidly rotating hot stars is described by the wind compression model. However, it was also shown that rapid rotation leads to rotational distortion of the stellar surface, resulting in the appearance…

Solar and Stellar Astrophysics · Physics 2014-10-22 Zuzana Cariková , Augustin Skopal

I review what we know about the donor stars in cataclysmic variables (CVs), focusing particularly on the close link between these binary components and the overall secular evolution of CVs. I begin with a brief overview of the "standard…

Solar and Stellar Astrophysics · Physics 2015-03-17 Christian Knigge

The hydrogen-rich envelopes accreted by white dwarf stars from their red dwarf companions lead to thermonuclear runaways observed as classical nova eruptions peaking at up to 1 Million solar luminosities. Virtually all nova progenitors are…

Solar and Stellar Astrophysics · Physics 2020-01-16 Yael Hillman , Michael M. Shara , Dina Prialnik , Attay Kovetz

Classical Novae (CNe) are the brightest manifestation of mass transfer onto a white dwarf in a cataclysmic variable (CV). As such, they are probes of the mass transfer rate, Mdot, and WD mass, Mwd, in these interacting binaries. Our…

Astrophysics · Physics 2009-11-10 Dean M. Townsley , Lars Bildsten

Cataclysmic variable (CVs) are close interacting binaries in which a white dwarf accretes materials from a low mass main sequence companion. CVs can experience nova eruptions due to low mass transfer rates. In the standard theory of CV…

Solar and Stellar Astrophysics · Physics 2025-07-31 Wenshi Tang , Xiangdong Li , Bo Wang

The population of non magnetic cataclysmic variables evolving under the influence of a circumbinary disk is investigated for systems above the upper edge of the period gap at orbital periods greater than 2.75hr. For a fractional mass input…

Astrophysics · Physics 2008-11-26 B. Willems , R. Taam , U. Kolb , G. Dubus , E. Sandquist

We redetermine the relationship between absolute magnitude and orbital period for dwarf novae, based on 46 stars with good distance estimates. This improves upon Warner's previous relation, building upon today's improved estimates of…

Solar and Stellar Astrophysics · Physics 2010-10-26 Joseph Patterson

White dwarfs (WDs) can increase their mass by accretion from companion stars, provided the mass-accretion rate is high enough to avoid nova eruptions. The accretion regimes that allow growth of the WDs are usually calculated assuming…

High Energy Astrophysical Phenomena · Physics 2014-03-20 Silvia Toonen , Rasmus Voss , Christian Knigge

The discovery of wide, eccentric Gaia neutron stars (NSs) in binaries with still evolving (likely main sequence) companions offers a new probe of mass transfer and pulsar recycling beyond the compact-binary regime. We model their origins…

Solar and Stellar Astrophysics · Physics 2025-10-15 Debatri Chattopadhyay , Kyle A. Rocha , Seth Gossage , Vicky Kalogera

The discrepancies between observations and theoretical predictions of cataclysmic variables (CVs) suggest that there exists unknown angular momentum loss mechanism(s) besides magnetic braking and gravitational radiation. Mass loss due to…

High Energy Astrophysical Phenomena · Physics 2024-10-22 Wen-Shi Tang , Xiang-dong Li , Zhe Cui

We have extracted spectra of 20 magnetic Cataclysmic Variables (mCVs) from the RXTE archive and fitted them using the X-ray continuum method of Cropper et al to determine the mass of the accreting white dwarf in each system. We find…

Astrophysics · Physics 2009-10-31 Gavin Ramsay
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